Click on a day for an hourly weather forecast
The temperatures in Iguazu in May are comfortable with low of 15°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Iguazu during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Iguazu in May 2025.
If you’re planning to visit Iguazu in the near future, we highly recommend that you review the 14 day weather forecast for Iguazu before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 33° / 21° | 11 | 20 | 0 | 218 mm | Ok | Iguazu in January |
| February | 33° / 21° | 10 | 18 | 0 | 160 mm | Ok | Iguazu in February |
| March | 31° / 20° | 8 | 23 | 0 | 174 mm | Ok | Iguazu in March |
| April | 29° / 18° | 6 | 24 | 0 | 159 mm | Good | Iguazu in April |
| May | 24° / 15° | 7 | 24 | 0 | 208 mm | Good | Iguazu in May |
| June | 22° / 14° | 6 | 24 | 0 | 171 mm | Good | Iguazu in June |
| July | 22° / 13° | 6 | 25 | 0 | 141 mm | Good | Iguazu in July |
| August | 25° / 14° | 5 | 26 | 0 | 98 mm | Perfect | Iguazu in August |
| September | 29° / 17° | 6 | 24 | 0 | 129 mm | Good | Iguazu in September |
| October | 30° / 18° | 9 | 22 | 0 | 234 mm | Ok | Iguazu in October |
| November | 31° / 19° | 8 | 22 | 0 | 188 mm | Ok | Iguazu in November |
| December | 32° / 21° | 10 | 21 | 0 | 187 mm | Ok | Iguazu in December |